Removing "Collaborator Spam" from Your GitHub Feed

I'm sick of seeing this garbage on GitHub.

Project owners shamelessly adding dozens upon dozens of famous open source developers, in an attempt to get a link to their project on as many GitHub feeds as possible (while chalking it up to "username errors"). To be honest, I don't really care what repositories my friends get added to - even if legitimately. The feature has never proven useful to me.